Oleh Solomka

Product-minded frontend leaning Full-Stack Developer and team lead with 6 years of experience building scalable web applications across React, Next.js, Node.js, NestJS and TypeScript including 2 years leading and mentoring engineering teams. Experienced in owning technical design, architecture, development and testing of full-stack features in high-load and distributed systems. Focused on clean architecture, performance, maintainability, testing and pragmatic delivery. Comfortable mentoring engineers, reviewing code, collaborating with product experts and using agentic AI development tools to improve operational workflows.

• 6+ years of frontend experience building scalable, production-grade, data-heavy applications: dashboards, back-office tools, and admin platforms - with React, Next.js and TypeScript;
• Expert-level React/TypeScript with state management at scale (Redux RTK, Zustand, TanStack Query), including normalized stores and memoized selectors for high-frequency data;
• Strong UI craftsmanship across MUI/MUI X, Tailwind and shadcn/ui, plus complex interactive patterns: drag-and-drop, canvas-based e-signing, and real-time WebSocket-driven views;
• Hands-on experience integrating AI-powered features into frontend applications, including owning the frontend of an AI-powered chat application end-to-end;
• Practical, daily use of AI-augmented and agentic development workflows (Claude Code, MCP-based agent tooling, context engineering) to speed up development and troubleshooting;
• Proven architecture ownership. Architected core features end-to-end for a high-load distributed platform, shaping API/data contracts with strict schema validation (Zod/Valibot);
• Built accessible (WCAG/ARIA) and internationalized (react-i18next) interfaces for multi-market, production applications;
• Strong analytical track record. Self-initiated a production bundle optimization from ~10MB to under 1MB during a code review, unprompted;
• Solid testing discipline (Vitest, Jest, Playwright e2e);
• Team lead and mentoring experience. Authored internal "React development guidelines", ran company-wide code reviews, coached developers through growth roadmaps;
• Direct client exposure. Led structured discovery workshops, requirement-mapping sessions, and technical estimation/feasibility discussions with clients and domain experts
• Backend-literate full-stack developer. Hands-on with Node.js, NestJS, Express, MongoDB and PostgreSQL, enabling tighter collaboration with backend teams on API contracts and integration;

Dance Studio Management System — Production Telegram Bots 

Node.js / Telegraf / Express / NestJS/ MongoDB / PostgreSQL / LiqPay
• Built and maintain two production Telegram bots used daily by two dance studios for bookings, payments, passes, staff schedules and payouts;

• Rebuilt the original Express + MongoDB solution into a NestJS + PostgreSQL architecture for improved maintainability;
• Implemented role-based workflows for guests, clients, staff and admins.

• Integrated LiqPay payments for booking and pass renewal flows;

• Currently developing an AI/RAG-powered support assistant with a custom agent harness to improve the contact-support experience for users;

• Maintained the system in production for 6+ years, handling real operational workflows and ongoing feature requests;